Marine mammals and sonar
The US Navy agrees to limit the use of sonar and explosives in key whale habitat
The history of whales and humans has not been a happy one, at least for whales — hunted nearly to extinction, maimed and killed by huge cargo ships, tangled in fishing nets and, in recent years, deafened by incessant and increasing ocean noise. But the US Navy is now stepping up and setting an example of how to do things better.